I've had no luck searching Google for terms like RCA power connector, other than a passing reference on Wikipedia. I have plenty of RCA connectors, and tons of wall warts. I've got a small LED desk lamp that I want to power with a wall wart instead of a battery, but I don't have any female connectors that the wall warts plug into.
So my thought was to use an adapter and change the end to be an RCA connector. If I'm putting a few volts and maybe 500mA or so, would there be any problem as far as the RCA connectors go? Obviously I'll need to reduce the voltage for the LED and I'll have to deal with those concerns, but if there's any problems with the connector I'll just try to find some standard connectors.